/
staking_info_db.go
66 lines (54 loc) · 1.76 KB
/
staking_info_db.go
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// Copyright 2020 The klaytn Authors
// This file is part of the klaytn library.
//
// The klaytn library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The klaytn library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the klaytn library. If not, see <http://www.gnu.org/licenses/>.
package reward
import (
"encoding/json"
"errors"
)
var ErrStakingDBNotSet = errors.New("stakingInfoDB is not set")
type stakingInfoDB interface {
ReadStakingInfo(blockNum uint64) ([]byte, error)
WriteStakingInfo(blockNum uint64, stakingInfo []byte) error
}
func getStakingInfoFromDB(blockNum uint64) (*StakingInfo, error) {
if stakingManager.stakingInfoDB == nil {
return nil, ErrStakingDBNotSet
}
jsonByte, err := stakingManager.stakingInfoDB.ReadStakingInfo(blockNum)
if err != nil {
return nil, err
}
stakingInfo := new(StakingInfo)
err = json.Unmarshal(jsonByte, stakingInfo)
if err != nil {
return nil, err
}
return stakingInfo, nil
}
func AddStakingInfoToDB(stakingInfo *StakingInfo) error {
if stakingManager.stakingInfoDB == nil {
return ErrStakingDBNotSet
}
marshaledStakingInfo, err := json.Marshal(stakingInfo)
if err != nil {
return err
}
err = stakingManager.stakingInfoDB.WriteStakingInfo(stakingInfo.BlockNum, marshaledStakingInfo)
if err != nil {
return err
}
return nil
}